Make overuse estimator one dimensional.

webrtc/modules/rtp_rtcp/source/rtcp_receiver_unittest.cc

Index: webrtc/modules/rtp_rtcp/source/rtcp_receiver_unittest.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_receiver_unittest.cc b/webrtc/modules/rtp_rtcp/source/rtcp_receiver_unittest.cc
index 5b0e656e32825e45f8f0f022db5cab8e534ec4c2..7f0121cff7f92512c02ebbda996e9b186d5f9435 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_receiver_unittest.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_receiver_unittest.cc
@@ -66,8 +66,7 @@ class TestTransport : public Transport,
 class RtcpReceiverTest : public ::testing::Test {
  protected:
   RtcpReceiverTest()
-      : over_use_detector_options_(),
-        system_clock_(1335900000),
+      : system_clock_(1335900000),
         remote_bitrate_observer_(),
         remote_bitrate_estimator_(
             new RemoteBitrateEstimatorSingleStream(&remote_bitrate_observer_,
@@ -131,7 +130,6 @@ class RtcpReceiverTest : public ::testing::Test {
     return 0;
   }
 
-  OverUseDetectorOptions over_use_detector_options_;
   SimulatedClock system_clock_;
   ModuleRtpRtcpImpl* rtp_rtcp_impl_;
   RTCPReceiver* rtcp_receiver_;